Question

Why can dust be removed from a carpet by shaking it or by beating it with a stick??????

Answer 1

Answer:

Initially, both the carpet and the dust there in are at rest. When the carpet is shaken or beaten with a stick, the carpet is set into motion. Due to the inertia of rest , the dust particles tend to remain at rest . As a result the dust particles fall off.

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Answer 2

Answer:

When the carpet is shaken or beaten by a stick, then the carpet moves back but the dust remains still due to inertia of rest and hence the dust particles get separated out.